2108686330 has 8 divisors (see below), whose sum is σ = 3795635412. Its totient is φ = 843474528.

The previous prime is 2108686319. The next prime is 2108686339. The reversal of 2108686330 is 336868012.

It can be written as a sum of positive squares in 2 ways, for example, as 2108554561 + 131769 = 45919^2 + 363^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2108686330.

It is not an unprimeable number, because it can be changed into a prime (2108686339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105434307 + ... + 105434326.

Almost surely, 2^2108686330 is an apocalyptic number.

2108686330 is a deficient number, since it is larger than the sum of its proper divisors (1686949082).

2108686330 is a wasteful number, since it uses less digits than its factorization.

2108686330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210868640.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 2108686330 is about 45920.4347758163. The cubic root of 2108686330 is about 1282.3423763259.

It can be divided in two parts, 21086 and 86330, that added together give a triangular number (107416 = T₄₆₃).

The spelling of 2108686330 in words is "two billion, one hundred eight million, six hundred eighty-six thousand, three hundred thirty".